typedef struct {    short data[4];} MatrixElement; void copy_matrix(MatrixElement m1[], MatrixElement m2[], int ROWS, int COLS) {    int i, j, k;    for (i = 0; i < ROWS; i++) {        for (j = 0; j < COLS; j++) {            for (k = 0; k < 4; k++) {                m1[i*COLS+j].data[k] = m2[i*COLS+j].data[k];            }        }    }} void copy_matrix_transpose(MatrixElement m1[], MatrixElement m2[], int ROWS, int COLS) {    int i, j, k;    for (i = 0; i < ROWS; i++) {        for (j = 0; j < COLS; j++) {            for (k = 0; k < 4; k++) {                m1[i*COLS+j].data[k] = m2[j*ROWS+i].data[k];            }        }    }}   You can assume the following conditions: The matrix m1 is allocated at memory address 0, and matrix m2 immediately follows it. Indices i, j, and k are kept in registers. ROWS and COLS are constants. The cache is initially empty before the function call. The cache is write-back (i.e., only writes back to memory when a line is evicted) and write-allocate (i.e., it always allocates a line for the write). The cache uses a least-recently-used replacement policy. sizeof(short) == 2. Given a direct-mapped cache of size 128 bytes with a 16-byte block size, answer the following: A. What is the cache miss rate of copy_matrix if ROWS = 4 and COLS = 8? Miss rate = _____________ % B. What is the cache miss rate of copy_matrix if ROWS = 3 and COLS = 8? Miss rate = _____________ % Considering a 2-way set associated cache of the same size and block size, answer the following: C. What is the cache miss rate of copy_matrix if ROWS = 4 and COLS = 8? Miss rate = _____________ % D. What is the cache miss rate of copy_matrix_transpose if ROWS = 8 and COLS = 8? Miss rate for accessing m1 = _____________ % Miss rate for accessing m2 = _____________ %

You can assume the following conditions:

• The matrix m1 is allocated at memory address 0, and matrix m2 immediately follows it.
• Indices i, j, and k are kept in registers.
• ROWS and COLS are constants.
• The cache is initially empty before the function call.
• The cache is write-back (i.e., only writes back to memory when a line is evicted) and write-allocate (i.e., it always allocates a line for the write).
• The cache uses a least-recently-used replacement policy.
• sizeof(short) == 2.

Given a direct-mapped cache of size 128 bytes with a 16-byte block size, answer the following: A. What is the cache miss rate of copy_matrix if ROWS = 4 and COLS = 8? Miss rate = _____________ %

B. What is the cache miss rate of copy_matrix if ROWS = 3 and COLS = 8? Miss rate = _____________ %

Considering a 2-way set associated cache of the same size and block size, answer the following: C. What is the cache miss rate of copy_matrix if ROWS = 4 and COLS = 8? Miss rate = _____________ %

D. What is the cache miss rate of copy_matrix_transpose if ROWS = 8 and COLS = 8? Miss rate for accessing m1 = _____________ % Miss rate for accessing m2 = _____________ %